C21D1/48 - CPC Classification Index

ClassID:

118935 ⎘

C21D1/48 - CPC Classification

Classification description:

General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering; Methods of heating in heat-treatment baths Metal baths

Recent Application in this class:

20240368718

2024-11-07

HEAT- TREATED STEEL AND HEAT TREATMENT METHOD FOR STEEL

20210355561

2021-11-18

HEAT EXCHANGE METHOD, HEAT EXCHANGE MEDIUM, HEAT EXCHANGE DEVICE, PATENTING METHOD, AND CARBON-STEEL WIRE

20180259022

2018-09-13

Spring steel wire and spring

20160244858

2016-08-25

WIRE ROD, HYPEREUTECTOID BAINITE STEEL WIRE, AND METHOD FOR MANUFACTURING THEREOF

20150329946

2015-11-19

Galvannealed steel sheet and method of manufacturing the same

20090238715

2009-09-24

Steel sheet for hot press forming having low-temperature heat treatment property, method of manufacturing the same, method of manufacturing parts using the same, and parts manufactured by the same

20090007989

2009-01-08

METAL BATH FLUX AND METHOD TO TREAT METAL BATH FLUX AND METHOD TO PRODUCE A METAL BATH FLUX